Fig.1

Block diagram of radar system simulation model"

Table 1

Definition of radar and target parameters"

Fig.2

Model of radio frequency simulation"

Fig.3

Module of PLL"

Fig.4

Module of I/Q demodulation"

Fig.5

Sawtooth signal waveform diagram of FMCW"

Table 2

FMCW signal waveform parameters"

Fig.6

Spectrum diagram of intermediate frequency signal"

Fig.7

Model of digital baseband"

Fig.8

Module architecture of FFT"

Fig.9

R-D diagram of radar simulation system"

Fig.10

Simulation model of noise in VCO"

Fig.11

FMCW waveform diagram considering SSN"

Fig.12

R-D diagram of SSN noise introduced in VCO"

Fig.13

Simulation model of spurious noise in radio frequency signal"

Fig.14

R-D diagram of radio frequency signal introducing spurious noise"

Fig.15

Simulation model of clutter noise in echo signal"

Fig.16

R-D diagram of clutter noise in echo signal"

Fig.17

R-D diagram of introducing both spurious noise and clutter noise"

Fig.18

R-D diagram of introducing SNN, spurious noise and clutter noise"

Fig.19

CFAR detection module"

Fig.20

R-D diagram of improved scheme after introducing multi-source noise"

Fig.21

Simulation model of signal transmission structure"

Table 3

Parameter index of transmission signal"

Fig.22

Model of equivalent circuit for single transmission line"

Fig.23

Model of equivalent circuit for five signal-channel transmission line"

Fig.24

Eye diagram of intermediate frequency signal"

Fig.25

Time domain waveform diagram of clock signal of the case"

Fig.26

Time domain waveform diagram of clock signal of the improved case"